(1/2x^2)-7x+5

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Solution for (1/2x^2)-7x+5 equation: 


x in (-oo:+oo)

(1/2)*x^2-(7*x)+5 = 0

(1/2)*x^2-7*x+5 = 0

1/2*x^2-7*x+5 = 0

DELTA = (-7)^2-(1/2*4*5)

DELTA = 39

DELTA > 0

x = (39^(1/2)+7)/(1/2*2) or x = (7-39^(1/2))/(1/2*2)

x = 39^(1/2)+7 or x = 7-39^(1/2)

x in { 7-39^(1/2), 39^(1/2)+7 }

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